Avoid crash if wxMessageBox() is called before GTK is initialized

See https://github.com/wxWidgets/wxWidgets/pull/2099
2020-10-23 09:20:08 -07:00
parent 15f1f7a9e5
commit 21d5f3f4a1
1 changed files with 4 additions and 0 deletions
--- a/src/gtk/msgdlg.cpp
+++ b/src/gtk/msgdlg.cpp
@@ -109,6 +109,10 @@ void wxMessageDialog::DoSetCustomLabel(wxString& var, const ButtonLabel& label)

 void wxMessageDialog::GTKCreateMsgDialog()
 {
+    // Avoid crash if wxMessageBox() is called before GTK is initialized
+    if (g_type_class_peek(GDK_TYPE_DISPLAY) == NULL)
+        return;
+
    GtkWindow * const parent = m_parent ? GTK_WINDOW(m_parent->m_widget) : NULL;

    GtkMessageType type = GTK_MESSAGE_ERROR;